Remediation technology and process for heavy metal and organic matter composite contaminated soil

A technology for complex pollution and polluted soil, applied in the field of contaminated soil remediation, can solve problems such as poor biodegradability and secondary soil pollution, and achieve the effects of enhancing fluidity, enhancing soil fertility, and reducing content
CN106694535AInactive Publication Date: 2017-05-24BEIJING FENGZELVYUAN ENVIRONMENT TECH
13 Cites 26 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING FENGZELVYUAN ENVIRONMENT TECH
Publication Date
2017-05-24
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
Patent Text Reader

Abstract

The invention provides a method for remediating heavy metal-organic matter composite contaminated soil. The method sequentially comprises the steps of building a leaching slope, paving the soil, carrying out heterogeneous physical and chemical leaching, backfilling, carrying out in-situ biodegradation and carrying out phytoremediation. According to the method, contaminants in the soil can be rapidly and effectively degraded, the remediation period of the contaminated soil is shortened, the remediation cost is low, no secondary contamination is caused, the method is simple and feasible, the fertility of the soil in contaminated sites can be improved, and the method is suitable for remediating the contaminated sites with various scale. The method can be used for remediating the soil contaminated by heavy metal such as Mn, Pb, As and Cu and the soil compositely contaminated by the organic matter such as petroleum and polycyclic aromatic hydrocarbon.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of remediation of polluted soil, and in particular relates to a remediation technology for compound polluted soil of heavy metals and organic matter. Background technique

[0002] In recent years, with the continuous advancement of my country's industrialization and urbanization, while improving people's living standards, it has also caused serious pollution to the foundation of human survival - the soil. Soil pollution includes inorganic pollution and organic pollution. Heavy metal pollution belongs to inorganic pollution, which mainly comes from the increase of heavy metal content in soil caused by human activities. It is non-degradable and highly mobile, and it takes a long time for natural purification; petroleum hydrocarbons and polycyclic aromatic hydrocarbons (PAHs ) pollution belongs to organic pollution, which mainly comes from the chemical industry, transportation, etc. Among them, PAHs are carcinogenic, te...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More